Music cataloging decisions : as issued by the Music Section, Special Materials Cataloging Division, Library of Congress in the Music Cataloging Bulletin, through December 1991 / indexed and edited by Betsy Gamble.
"This publication includes music cataloging decisions published in the Music Cataloging Bulletin through volume 22, number 12, December 1991."--Page 3.
Pages inserted in loose-leaf copies of AACR2 (2nd edition).